Aerosol spray starch formulation

Abstract

An improved aerosol spray starch formulation is prepared by combining a starch component, a polyhydric material, a nonionic surfactant and a mixture of boric acid and borax in an aqueous medium together with a normally gaseous liquefied propellant. The starch formulation provides after pressing an excellent starching effect, that is, stiffness without roughness, without flaking or aerosol clogging.

What is claimed is: 
     
       1. An aerosol starch formulation for use in finishing laundered textile garments comprising from about 2 to about 10 parts by weight of a liquefied normally gaseous propellant and from about 98 to about 90 parts by weight of an aqueous starch composition consisting essentially of water and from about 2 to about 6 percent by weight starch, from about 0.05 to about 1.0 percent by weight of a polyhydric material which enhances the wetting and anti-clogging properties of the composition and is selected from the group of polymeric glycols of alkanes and olefins having from 2 to about 6 carbon atoms, from about 0.01 to about 0.5 percent by weight of a nonionic surfactant, from about 0.05 to about 0.15 percent by weight of boric acid and from about 0.2 to about 0.6 percent by weight of borax, said formulation having a substantially reduced tendency to flake when applied onto fabric which is then ironed. 
     
     
       2. The formulation of claim 1 wherein the ratio of borax to boric acid is from about 5:1 to about 3:1. 
     
     
       3. The formulation of claim 1 which further contains, as an anti-foaming agent, from about 0.25 to about 0.75 percent by weight of a dimethyl polysiloxane emulsion containing about 10% by weight of silicone. 
     
     
       4. The formulation of claim 1 which further contains, as an ironing aid, from about 0.1 to about 1.0% by weight of a dimethyl polysiloxane emulsion containing about 37% by weight of silicone. 
     
     
       5. The formulation of claim 1 wherein said starch is a low viscosity starch derivative chosen from the group consisting of propoxylated and ethoxylated starches. 
     
     
       6. The formulation of claim 1 wherein said polyhydric material is a polyethylene glycol. 
     
     
       7. The formulation of claim 1 wherein said nonionic surfactant is an octylphenoxy polyethoxy ethanol having about 9 to 10 oxyethylene groups per molecule. 
     
     
       8. An aerosol starch formulation for use in finishing laundered textile garments comprising about 6 parts by weight of a liquefied isobutane propellant and about 94 parts by weight of an aqueous starch formulation consisting essentially of about water and 4 percent by weight of an ethoxylated corn starch, about 0.2 percent by weight of polyethylene glycol having a molecular weight of about 6,000, about 0.05 percent of octylphenoxy polyethoxy ethanol having about 9 to 10 oxyethylene groups per molecule, about 0.4 percent by weight of borax, about 0.1 percent by weight of boric acid, about 0.5 percent of a dimethyl polysiloxane emulsion containing about 10% silicone and about 0.5 percent of a dimethyl polysiloxane emulsion containing about 37% silicone, said formulation having a substantially reduced tendency to flake when applied to a fabric which is then ironed. 
     
     
       9. The formulation of claim 6 wherein the polyethylene glycol has a molecular weight from about 1,000 to about 12,000.